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AL SERVENTR WDGE CLAMP/SLDR 4/0 F
Manufacturer Resources
Product Specs
- Connection Type:
- Tension
- Country Of Origin:
- Mexico (MX)
- Insulation Material:
- None
- Number Of Conductors:
- 1
- Product Group:
- Wire & Cable Management
- Product Type:
- Aluminum Service Wedge Clamp
- Selling Unit Of Measure:
- each
- Surface Finishing:
- Bare
- Type2:
- Cable gland connector
- Voltage Rating:
- 35 kV
- Department:
- Electrical
- Product Subgroup:
- Connectors
- Product Size:
- Length 18-1/2 in X Depth Flexible
- Installation Category:
- Yes
- Product Material:
- Aluminum
Blackburn W40-1FC – Frequently Asked Questions
1) What voltage is the Blackburn W40-1FC wedge clamp rated for?
The W40-1FC service entrance wedge clamp carries a 35 kV rating, so it covers secondary service work and medium-voltage runs up to that level. It's a bare aluminum connector with no insulation on the body, so the connection has to be insulated or covered as the installation requires.
2) How many conductors does the Blackburn W40-1FC take?
One. The W40-1FC is a single conductor device, so you need one clamp per conductor. On a three phase plus neutral service that means four units, and they are sold individually rather than in a kit or multipack.
3) Is the Blackburn W40-1FC insulated, or do I need to cover the connection?
No insulation is supplied on the W40-1FC. The body is bare aluminum, so the finished connection has to be insulated separately, typically with a cold shrink or heat shrink sleeve, tape build-up, or an insulating cover appropriate to the 35 kV class it is rated for.
4) Can I use the Blackburn W40-1FC on aluminum conductors, or copper only?
The W40-1FC body is aluminum with a bare surface finish, which is the standard construction for aluminum service entrance wedge connectors. It's sized for 4/0 conductor work per the Blackburn W40-1FC designation. Since the connector is aluminum, the usual practice of applying an oxide-inhibiting compound on aluminum conductor terminations applies here.
5) How does a wedge clamp connector differ from a compression lug or split bolt for service entrance taps?
A wedge clamp like the W40-1FC is a tension type connection: the wedge is driven to hold the conductors mechanically, so no crimp tool die set and no compression press is needed. Split bolts and compression lugs need either a wrench-torqued bolt or a hydraulic crimper with the matching die. For a utility or service entrance tap where you're working aloft or in a tight pull box, the tension wedge is faster to make off and is the common choice on bare aluminum service conductors.
6) What length is the Blackburn W40-1FC wedge clamp assembly?
The W40-1FC measures 18-1/2 inches in length, with a flexible depth. That length matters when you're planning clearance in a pull box, handhole, or pedestal, since the assembly needs room to lay in without bending the conductor tighter than its bend radius allows.
7) What is the exact part number and manufacturer for this 4/0 aluminum service wedge clamp?
It's Blackburn part W40-1FC, an aluminum service entrance wedge clamp for 4/0 conductor, made in Mexico. Order by that number when matching an existing installation, since the numbering within the W series changes with conductor size.
How fast can I get the Blackburn W40-1FC delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Blackburn W40-1FC come with a warranty?
Absolutely. The Blackburn W40-1FC is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Blackburn W40-1FC?
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